The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2001
Filed:
Aug. 10, 1998
Michael Joseph Stirniman, San Jose, CA (US);
Samuel John Falcone, San Jose, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A lubricant topcoat is applied to a magnetic recording medium under vacuum, thereby eliminating oxidative degradation, increasing lubricant transport properties to the disc surface, increasing uniformity and enabling control of the lubricant molecular weight distribution. Embodiments include positioning the magnetic recording medium in a deposition chamber in communication with a source chamber containing the lubricant and evacuating the chambers to subatmospheric pressure. A heater, attached to the source chamber, elevates the temperature of the lubricant within the source chamber so that the lubricant flows from the source chamber to the deposition chamber and deposits on the magnetic recording medium.